Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5645087 | Method of and apparatus for decontaminating the exposed surfaces of filter mouthpieces in smokers' products | Stefan Fietkau, Peter-Franz Arnold, Thomas Juschus, Clemens Schmick | 1997-07-08 |
| 5590449 | Apparatus for stretching plasticizing and gathering a tow of filter material for tobacco smoke | Stefan Fietkau, Peter-Franz Arnold | 1997-01-07 |